Module token 

TDS token stream definitions.

Tokens are the fundamental units of TDS response data. The server sends a stream of tokens that describe metadata, rows, errors, and other information.

Token Structure

Each token begins with a 1-byte token type identifier, followed by token-specific data. Some tokens have fixed lengths, while others have length prefixes.

Usage

use tds_protocol::token::{Token, TokenParser};
use bytes::Bytes;

let data: Bytes = /* received from server */;
let mut parser = TokenParser::new(data);

while let Some(token) = parser.next_token()? {
    match token {
        Token::Done(done) => println!("Rows affected: {}", done.row_count),
        Token::Error(err) => eprintln!("Error {}: {}", err.number, err.message),
        _ => {}
    }
}

Structs

ColMetaData

Column metadata token.

Collation

SQL Server collation.

ColumnData

Column definition within metadata.

Done

Done token indicating statement completion.

DoneInProc

Done in procedure token.

DoneProc

Done procedure token.

DoneStatus

Done status flags.

EnvChange

Environment change token.

FeatureAck

Individual feature acknowledgment.

FeatureExtAck

Feature extension acknowledgment.

FedAuthInfo

Federated authentication info.

LoginAck

Login acknowledgment token.

NbcRow

Null bitmap compressed row.

Order

Column ordering information.

RawRow

Raw row data (not yet decoded).

ReturnValue

Return value from stored procedure.

ServerError

Server error message.

ServerInfo

Server informational message.

SessionState

Session state token.

SspiToken

SSPI authentication token.

TokenParser

Token stream parser.

TypeInfo

Type-specific metadata.

Enums

EnvChangeType

Environment change type.

EnvChangeValue

Environment change value.

Token

Parsed TDS token.

TokenType

Token type identifier.